What are the negative and positive aspects of hydropower?

Answer 1

Most electricity is produced by burning fossil fuels like coal, oil and natural gas. Whenever fossil fuel is burnt it releases carbon dioxide that has been stored in the fuel for millions of years. This carbon dioxide adds to the greenhouse gases in the environment that are contributing to global warming.

Answer 2

Positive of hydro power

1.Pollution free.

2.Instantly we can switch off and on the power generation.

3.It can be done in peak hour and stop or reverse in off peak hour.

Negative

1.Site availability

2.Deforestation and other environmental problem.

Answer 3

lol While hydroelectric power is a renewable fuel, it has some draw backs, especially with the use of dams. Dams require too much land area to operate and during their first few years actually emit more green house gases than a comparable coal plant. However there is research being done in other ways that we might utilize the vast power of running water to generate electricity, especially in using ocean currents and tides with turbines, these would certainly have much less of an impact and are considerably cleaner. lol

Answer 4

Positives:

1. Doesn't 'use' water - it goes back to its original location and energy is made out of it.
2. Works 24/7 - as long as the water source doesn't dry out.

Negatives:

1. Expensive to build - must be high quality to make a profit.

Answer 5

Positive - it does not create pollution. Negative - sometimes large areas are drowned by building the dam, and people are displaced